unlike - definition and synonyms

verb [intransitive/transitive] 

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present tense
present participleunliking
past tenseunliked
past participleunliked
  1. to show that you do not like something by clicking the unlike button on a social networking site

    Speaking of that other place, I just deleted my bookmarks and unliked them on FB today.

    When someone unlikes your business, that’s what Facebook calls "Negative Feedback".